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Audi S4 Performance Parts & Upgrades

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BR Series Coilover Suspension Kit - B9 Audi A4/S4

ES#4424819 - S-27-BR - BR Series Coilover Suspension Kit - B9 Audi A4/S4 - Featuring 30 levels of adjustment and performance spring rates and valving that makes the BR Series perfect for both daily drivers and track warriors! - BC Racing - Audi

Featuring 30 levels of adjustment and performance spring rates and valving that makes the BR Series perfect for both daily drivers and track warriors! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date up to 7/11/2016 with 53mm front strut body without factory Electronic Damping Control.

Brand:
BC Racing - Corporate Logo
ES#:
4424819
Mfg#:
S-27-BR
Back Ordered
$1195.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Brake Kit - Stage 1 - 2-Piece Tru-Float Scalloped Rotors (345x30)

ES#2855151 - 003523KT01AKT - Front Brake Kit - Stage 1 - 2-Piece Tru-Float Scalloped Rotors (345x30) - Upgrade your brake system with 2-piece scalloped rotors and stainless steel lines - ECS - Audi

Upgrade your brake system with 2-piece scalloped rotors and stainless steel lines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2855151
Mfg#:
003523KT01AKT
In Stock
ON SALE!
$1230.99

This product was last offered at the strikethrough price on
06-13-2026

$1194.06 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Seibon ER-Style Carbon Fiber Hood

ES#3010194 - HD9601AUA4ER - Seibon ER-Style Carbon Fiber Hood - Add style and remove weight from the front end of your Audi! - Seibon - Audi

Add style and remove weight from the front end of your Audi! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Seibon - Corporate Logo
ES#:
3010194
Mfg#:
HD9601AUA4ER
Special Order: No Guaranteed ETA
$1181.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil Pack - Set Of Six

ES#3691811 - 06h905110gKT4 - Ignition Coil Pack - Set Of Six - Keep your engine running strong - Genuine Volkswagen Audi - Audi

Keep your engine running strong affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3691811
Mfg#:
06H905110GKT4
In Stock
$590.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

B7 A4/S4/RS4 Master LED Interior Lighting Kit

ES#2202566 - B7LEDKIT - B7 A4/S4/RS4 Master LED Interior Lighting Kit - Transform your complete interior in minutes with new LED interior bulbs from Ziza - ZiZa - Audi

Transform your complete interior in minutes with new LED interior bulbs from Ziza affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Sedan models only

Brand:
ZiZa - Corporate Logo
ES#:
2202566
Mfg#:
B7LEDKIT
In Stock
ON SALE! SAVE 50%
$117.99

This product was last offered at the strikethrough price on
05-02-2026

$59.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

034 Motorsport 2.5mm Wheel Spacer - Pair

ES#4751520 - 034-604-7019 - 034 Motorsport 2.5mm Wheel Spacer - Pair - 2.5mm Wheel Spacer Pair is designed to fit most Audi & BMW vehicles with a 66.6mm center bore and 5x112mm wheel bolt patterns. - 034Motorsport - Audi

2.5mm Wheel Spacer Pair is designed to fit most Audi & BMW vehicles with a 66.6mm center bore and 5x112mm wheel bolt patterns. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4751520
Mfg#:
034-604-7019
In Stock
$49.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 3 Daily Clutch Kit

ES#3106506 - k70286ssoKT - Stage 3 Daily Clutch Kit - Designed for high-powered street cars while capable enough to handle the track. Conservatively rated at 480ft/lbs. - South Bend Clutch - Audi

Designed for high-powered street cars while capable enough to handle the track. Conservatively rated at 480ft/lbs. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Works with stock flywheel

Brand:
South Bend Clutch - Corporate Logo
ES#:
3106506
Mfg#:
K70286SSOKT
Ships in 1 Business Day
$1171.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Hood

ES#3010155 - HD0910AUA4OE - Carbon Fiber Hood - Add style and remove weight from the front end of your Audi! - Seibon - Audi

Add style and remove weight from the front end of your Audi! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits up to the 2012 model year only (Pre-facelift) - To be used with hood pins

Brand:
Seibon - Corporate Logo
ES#:
3010155
Mfg#:
HD0910AUA4OE
Special Order: No Guaranteed ETA
$1170.00 USD

Carbon Fiber Hood

ES#3010181 - HD1213AUA4OE - Carbon Fiber Hood - Add style and remove weight from the front end of your Audi! - Seibon - Audi

Add style and remove weight from the front end of your Audi! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits from the 2013 model year only (Facelift) - To be used with hood pins

Brand:
Seibon - Corporate Logo
ES#:
3010181
Mfg#:
HD1213AUA4OE
Special Order: No Guaranteed ETA
$1170.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Front Lower Radius Arm To Chassis Bushing - Street

ES#4046169 - PFF3-702 - Front Lower Radius Arm To Chassis Bushing - Street - Audi A4 / A5 / S5 / Q5 / SQ5 / RS4 Front Lower Radius Arm To Chassis Bushing - Street - Powerflex - Audi

Audi A4 / A5 / S5 / Q5 / SQ5 / RS4 Front Lower Radius Arm To Chassis Bushing - Street affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Powerflex - Corporate Logo
ES#:
4046169
Mfg#:
PFF3-702
Back Ordered
$145.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cup Kit - H&R Super Sport Springs With Bilstein Sport Shocks

ES#2739505 - 50361-77KT - Cup Kit - H&R Super Sport Springs With Bilstein Sport Shocks - Aggressive looks with ultimate handling - Assembled By ECS - Audi

Aggressive looks with ultimate handling affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2739505
Mfg#:
50361-77KT
Ships on Sep 18, 2026
Auto Notify
$1353.99

This product was last offered at the strikethrough price on
05-22-2026

$1157.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Oil Filter Housing Hook-Up - Audi 3.0T & 3.2L

ES#3137351 - 002292ECS01AKT - Billet Aluminum Oil Filter Housing Hook-Up - Audi 3.0T & 3.2L - Includes free Hengst Oil Filter with purchase of ECS Billet Oil Filter Housing - Limited time only! - Assembled By ECS - Audi

Includes free Hengst Oil Filter with purchase of ECS Billet Oil Filter Housing - Limited time only! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3137351
Mfg#:
002292ECS01AKT
In Stock
ON SALE!
$144.99

This product was last offered at the strikethrough price on
05-02-2026

$144.51 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Density Line Front Upper Strut Mount - Priced Each

ES#2952203 - 034-601-1000 - Density Line Front Upper Strut Mount - Priced Each - Approximately twice as stiff as stock, for increased firmness and vehicle control - 034Motorsport - Audi

Approximately twice as stiff as stock, for increased firmness and vehicle control affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
2952203
Mfg#:
034-601-1000
In Stock
$44.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lightweight Billet Flexplate

ES#4500291 - FP-060AM-HD - Lightweight Billet Flexplate - Prevent your stock flexplate from cracking with this Billet unit! - Clutch Masters - Audi

Prevent your stock flexplate from cracking with this Billet unit! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Clutch Masters - Corporate Logo
ES#:
4500291
Mfg#:
FP-060AM-HD
Ships in 6 Business Days
$572.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front USR Series Sport Slotted Rotors with Redstuff Brake Pads Kit

ES#3069688 - S4KF1593 - Front USR Series Sport Slotted Rotors with Redstuff Brake Pads Kit - Upgrade to a Turbo slotted rotor for improved braking paired with A high-performance street pad for great braking - EBC - Audi

Upgrade to a Turbo slotted rotor for improved braking paired with A high-performance street pad for great braking affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
EBC - Corporate Logo
ES#:
3069688
Mfg#:
S4KF1593
In Stock at Vendor
15% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$671.99

This product was last offered at the strikethrough price on
06-19-2026

$570.99 USD
Free Shipping
on orders $49 and up

Rear Differential Mount Bushing Insert Kit

ES#3161730 - 019208ecs01KT - Rear Differential Mount Bushing Insert Kit - Decrease differential bushing deflection for better drivetrain response! - ECS - Audi

Decrease differential bushing deflection for better drivetrain response! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3161730
Mfg#:
019208ECS01KT
In Stock
ON SALE!
$129.99

This product was last offered at the strikethrough price on
06-13-2026

$126.09 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

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